My personal experience is: Either jump in quickly after the first big green candle. The key detail here is that 'big' is a relative term, referring to the volatility compared to the previous period. Also, distinguish what kind of event it is—does it offer a chance to find a selling point later? Quick pump and sell? Event-driven sell? As for breaking resistance levels, the highest success rate comes after a bull market is confirmed. In a bull market, the overall trend is upward, although major resistance levels in a bull market usually see pullbacks. Don’t gamble during a bear market—bear markets will trap you.